A java PCAP and DPI library
A simple, portable port scanner
Small Content Filtering And Web Acceleration Appliance
An iptables IPv4 firewall and traffic shaping program
blocklists for openbsd,freebsd,linux,iptables,bsd pf,pf,ipfilter
ipset set listing wrapper script
Powerfull Web Application Firewall for PHP
Prevent and Protect Your HTML5 Video, Music , Audio From Download Free
Programmable completion code (bash) for ip[6]tables (netfilter.org)
PeerGuardian - a privacy oriented firewall application
Simulating an IP packet traversing the Linux kernel.
360-FAAR Analyze FW1 Cisco Netscreen Policy Offline Using Config/Logs
upnp port opener
High-performance WAF built on the OpenResty stack
Webinterface to (un)ban IPs in Fail2Ban
Network Firewall Linux Kernel Module with Conflict Resolution Engine